When the original source signals and input channel are unknown, blind source separation (BSS) tries decomposing the mixed signals observed to obtain the original source signals, as seems mysterious. BSS has found many applications in biomedicine science, image processing, wireless communication...

In this paper, the authors first analyze the research and development of semantic retrieval technology based on ontology, and introduce the key theoretical knowledge of ontology and semantic web, including the definition, description language, classification and semantic web. Secondly, this...

With the development and construction of the city, more and more high-rise buildings, more and more intensive, urban high-rise building pilot pollution problems become more and more prominent, urgent technical researchers continue to optimize the current communication network solutions. CDMA...